I don't think he's mental. I think it's a strategy not unlike the political strategy of slinging mud. Your opponent can wipe it off, but some of it sticks. You are not trying t converth heathens. You are trying to give your own troops something to cheer about.

It's obvious that creationists scroll past science the same way we scroll past BA77. You only pay attention to your own side.

But the standard of evidence for apologetics does't overlap with the stand of evidence for science. So there will never be any actual communication.